@@ -37,7 +37,7 @@ with the following input parameters:
| lp_inputcolumn | Name of the column in the input file that contains the heat load data | - | string | Heat load data in unit kW; Optional; only used if `lp_type` is FROMFILE |
| lp_smoothing | Type of smoothing applied to the load data | — | string | Options: D (daily), M (monthly), Y (yearly). Optional; only used if `lp_type` is FROMFILE |
| lp_scale | Scaling factor applied to the load values | — | scalar | Scaling factor for the load profile. Optional; only used if `lp_type` is FROMFILE |
| lp_minscaleflow | Minimum scaling factor for flow | - | scalar | To avoid very lowe flowrates affecting numerical performance. Optional; only used if `lp_type` is FROMFILE or VARIABLE |
| lp_minscaleflow | Minimum scaling factor for flow rate | - | scalar | To avoid very lowe flowrates affecting numerical performance. Optional; only used if `lp_type` is FROMFILE or VARIABLE |
| lp_minQ | Minimum heat demand (absolute) | - | scalar | Below lo_minQ the heat demand is set to 0 to avoid numerical performance issues. Optional; only used if `lp_type` is FROMFILE |
| lp_peak | Peak heat load | W | scalar | Optional; only used if `lp_type` is VARIABLE |
| lp_base | Base heat load | W | scalar | Optional; only used if `lp_type` is VARIABLE |
@@ -101,11 +101,15 @@ represents the dwelling equivalent (DE) of power. I.e. the heat load is increase
> **_NOTE:_** To apply a smoothing factor to the pre-defined heat load or flow rate profile, a column named "local_time" is required
> in the input CSV file, that includes the timestamps for the data column.
For a pre-defined heat load profile or a variable heat load following a cosine pattern, the flow rate in the main model
configuration (`m_flow`) is automatically scaled such that the ratio of the
required pumping power to the generated power (or the COP of the
fluid circulation pump) is constant. Here, `m_flow` defines the maximum value in the scaled flow rate profile. To ensure numerical
stability, also the minimum allowed scaling factor for the flow rate is defined in `lp_minscaleflow`.
For a predefined or analytically generated heat load profile (e.g., cosine-based), the flow rate is scaled proportionally
to the instantaneous heat load. The parameter `m_flow` represents the maximum flow rate, which is reached when the absolute
heat load is at its peak.
At each time step, the flow rate is computed by normalizing the absolute heat load with respect to its maximum value and
multiplying it by `m_flow`. This results in a flow rate profile that follows the magnitude of the load.
To avoid unrealistically low or zero flow rates, a minimum scaling factor is enforced via `lp_minscaleflow`. As a result,
the flow rate never drops below `lp_minscaleflow * m_flow`.
> Heat load profiles can represent heating, cooling, or variable operation modes.
